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  1. #include<bits/stdc++.h>
  2. using namespace std;
  3.  
  4. int p[50];
  5. int main(){
  6. 	int n, m;
  7. 	cin >> n >> m;
  8. 	for(int i = 1; i <= n; i++){
  9. 		int y = m;
  10. 		cout << y << "\n";
  11. 		fflush(stdout);
  12. 		int x;
  13. 		cin >> x;
  14. 		if(x == 0)
  15. 			exit(0);
  16. 		if(x == -1)
  17. 			p[i]++;
  18. 	}
  19. 	int lo = 0, hi = m + 1, mid, i = 0;
  20. 	while(hi - lo > 1){
  21. 		i++;
  22. 		mid = hi + lo >> 1;
  23. 		int y = mid;
  24. 		cout << y << "\n";
  25. 		fflush(stdout);
  26. 		int x;
  27. 		cin >> x;
  28. 		if(x == 0)
  29. 			exit(0);
  30. 		if(!p[i])
  31. 			x = -x;
  32. 		if(x == -1)
  33. 			hi = mid;
  34. 		else
  35. 			lo = mid;
  36. 	}
  37.  
  38. }
Success #stdin #stdout 0s 4292KB
comments (?)
stdin
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Standard input is empty
stdout
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11005
16508
19259
20635
21323
21667
21839
21925
21968
21989
22000
22005
22008
22009
22010
https://ideone.com/klzLiI
language:
C++14 (gcc 8.3)
created:
5 years ago
visibility:
public

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